I don't know the answer, and I'd bet that information is a pretty closely guarded secret. They do not release info on how they score apps. In general, you'd think that having more than 1 internal rec would help, but there's probably a limit to how much credit you'll get. Regardless, your app can only be scored once every 12 months, so once the first person puts it in, having more people also do so will not garner additional scorings.